September 2026 Events in Denver and the Colorado Mountains
September in Colorado offers the best of both seasons: warm afternoons, cooler evenings and the first signs of fall arriving in the mountains. From outdoor festivals in Denver to music, film and Oktoberfest celebrations in the high country, the month is filled with reasons to explore.
Whether you are planning a weekend in the city or an early-fall mountain escape, these September 2026 events in Denver and the Colorado mountains belong on your calendar.
September 2026 Events in Denver
Sturm Family Wing Grand Opening
September 1 | Denver Museum of Nature & Science
The Denver Museum of Nature & Science will open its newly renovated Sturm Family Wing with a free community celebration from 4–9 p.m. Guests can explore the new plaza, enjoy hands-on activities, watch live science demonstrations and listen to live music. Museum admission is free for the evening, with no registration required.
Denver Broncos Home Opener
September 20 at 2:05 p.m. | Empower Field at Mile High
Football returns to Empower Field as the Denver Broncos host the Jacksonville Jaguars for their 2026 regular-season home opener. The Week 2 matchup marks the beginning of Denver’s home schedule and one of the city’s most anticipated September traditions.
Global Dance Festival
September 11–12 | Denver
Global Dance Festival returns for two days of electronic music, immersive production and large-scale performances. The annual festival brings together established artists, rising performers and dance-music fans from across the region.
Denver Oktoberfest
September 18–20 and September 25–27 | Ballpark District
Denver Oktoberfest returns to Larimer Street for two weekends of live music, Bavarian-inspired food and signature competitions. Festival traditions include stein hoisting, keg bowling and the popular Long Dog Derby.
General admission is free, with optional VIP experiences available.
Panda Fest Denver
September 25–27 | Civic Center Park
Panda Fest makes its Denver debut with a three-day celebration of Asian food, art and culture. The outdoor festival will feature an expansive selection of street food, specialty vendors, live performances and interactive experiences in Civic Center Park.
September Events in the Colorado Mountains
JAS Labor Day Experience
September 4–6 | Snowmass Town Park
Spend Labor Day weekend surrounded by live music and mountain views at the JAS Labor Day Experience. The 2026 lineup includes Benson Boone, Tim McGraw, Bonnie Raitt, Shaboozey, The Red Clay Strays and Trombone Shorty & Orleans Avenue.
Breckenridge Bluegrass & Beer Festival
September 11–13 | Main Street Station
This three-day Breckenridge event pairs live bluegrass with Colorado craft beer and mountain-town atmosphere. The weekend includes a beer-pairing dinner, Saturday grand tasting and Sunday brunch, with a variety of ticket options available.
Breckenridge Film Festival
September 17–20 | Downtown Breckenridge
The 46th annual Breckenridge Film Festival brings four days of independent film, premieres and filmmaker conversations to venues throughout downtown Breckenridge. The walkable festival also includes forums, parties and complimentary programming for children.
Aspen Literary Festival
September 25–27 | Aspen
Readers and writers will gather in Aspen for a weekend of author conversations, book signings and community programming. The 2026 lineup includes Jennette McCurdy, Veronica Roth, Kwame Alexander, Maria Semple, Lisa See and Michael Cunningham.
Breckenridge Oktoberfest
September 25–27 | Historic Main Street
Historic Main Street transforms into a lively street festival for one of Breckenridge’s most anticipated fall traditions. Expect live music, dancing, traditional German food, collectible steins and family-friendly activities throughout the weekend.
Admission to the street party is free.
Experience September in Colorado
The best September 2026 events in Denver offer something for every kind of weekend, from food and culture in the city to live music and early fall color in the mountains.
Event schedules, tickets and availability may change. Confirm details directly with each organizer before attending.
Looking for more local recommendations—or considering making Colorado home? Connect with a LUX real estate professional for thoughtful guidance on Denver and Colorado mountain communities.
Frequently Asked Questions
What are the best September 2026 events in Denver?
Highlights include the Sturm Family Wing Grand Opening, Colorado 150 Film Festival, Global Dance Festival, Denver Oktoberfest and Panda Fest.
What events are happening in the Colorado mountains in September 2026?
Popular mountain events include the JAS Labor Day Experience, Breckenridge Bluegrass & Beer Festival, Breckenridge Film Festival, Aspen Literary Festival and Breckenridge Oktoberfest.
Are any September events in Denver free?
The Sturm Family Wing Grand Opening includes free museum admission, while Denver Oktoberfest offers free general admission. Individual activities, food, beverages and premium experiences may require payment.
Is September a good time to visit the Colorado mountains?
Yes. September typically brings cooler temperatures, fewer summer crowds and the beginning of Colorado’s fall-color season. Conditions and the timing of peak foliage vary by location and elevation.
